<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <title>Web标准网页</title>
    <!--表现-->
    <link href="css/style.css" rel="stylesheet" type="text/css">
</head>

<body>
    <!--结构-->
    <section>
        <button>插入图像</button>
    </section>
    <!--行为-->
    <script src="js/javascript.js"></script>
</body>

</html>